Fracture Toughness of Human Enamel-Reference-Cited by-同舟云学术

Fracture Toughness of Human Enamel

Published:1981-04 Issue:4 Volume:60 Page:820-827
ISSN:0022-0345
Container-title:Journal of Dental Research
language:en
Short-container-title:J Dent Res

Author:

Hassan R.¹,Caputo A.A.²,Bunshah R.F.³

Affiliation:

1. School of Dentistry, New York University, New York, New York 10010

2. Biontaterials Science Section, UCLA School of Dentistry

3. Materials Department, UCLA School of Engineering and Applied Science, Los Angeles, California 90024

Abstract

A microindentation technique was employed to estimate the fracture toughness of human enamel. A pattern of increasing fracture toughness values existed from incisal to cervical in incisor enamel. Statistical analysis indicated that the molar enamel was more brittle than either the canine or incisor enamel. It was observed that the cracks emanating from the comers of an indentation propagated preferentially, with the weakest path of fracture usually extending along the cervical-incisal axis.

Publisher

SAGE Publications

Subject

General Dentistry

Link

http://journals.sagepub.com/doi/pdf/10.1177/00220345810600040901

Reference12 articles.

1. Helmcke, J.G.: Atlas des Menschlichen und Zahnes in Electronenmikropischen Bild, Parts I and II, Berlin: Wilmersdorff, Transmar Photo , 1953.

2. Scanning Electron Microscope Study of Tomes' Fibers

3. Scanning electron microscopy of human dentine specimens fractured in bend and torsion tests

4. Fracture Properties of Human Enamel and Dentin

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